U.S. patent number D320,211 [Application Number 07/536,120] was granted by the patent office on 1991-09-24 for telephone transferring switchboard. This patent grant is currently assigned to Kabushiki Kaisha Toshiba. Invention is credited to Takaharu Ando.
United States Patent | D320,211 |
Ando | September 24, 1991 |
Inventors: | Ando; Takaharu (Ryugasaki, JP) |
---|---|
Assignee: | Kabushiki Kaisha Toshiba
(Kawasaki, JP) |
Appl. No.: | 07/536,120 |
Filed: | June 11, 1990 |
Dec 12, 1989 [JP] | 1-44937 | |||
Current U.S. Class: | D14/151 |
Field of Search: | ;D14/241,151 ;379/440,419,436 |
D273109 | March 1984 | Breger |
D273370 | April 1984 | Eilert |
D293437 | December 1987 | Hoshino et al. |
D293790 | January 1988 | Hillmer |
D298132 | October 1988 | Hickling |
D300139 | March 1989 | Nishio |
D300320 | March 1989 | Watanabe et al. |
D304564 | November 1989 | Kido et al. |
D310524 | September 1990 | Utsuki et al. |
No. 755159 published Feb. 15, 1989--Sharp Corporation. . No. 694968 published Dec. 16, 1986--Fujitsu Limited. . Similar-Design No. 694968-1 published Nov. 9, 1988--Fujitsu Limited.. |
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